I'm not always active on deviantART, so please excuse me if I respond late.
My gallery is mostly composed of sketches and doodles because I normally don't have the time/patience/interest to draw any other way. My best work comes from my sketches anyway. On top of that, I suck at coloring and shading, so there's not really a point in putting in time and effort to produce a neat drawing. Regardless, I don't have the proper pen or pencil for inking on paper.
I mostly draw traditionally, but I do occasionally draw digitally (but again, mostly sketches). For my polished digital artworks, I either used PaintTool SAI, Photoshop, or both, but I'm not very experienced with either program when it comes to drawing (especially coloring). I don't have a drawing tablet to sketch or ink, so I'd normally scan my sketches and ink with the help of tools from one or both of the aforementioned programs. My digital sketches/doodles, on the other hand, are always done by mouse (except for a very few I drew by tablet long time ago). It's not that I have a super-steady hand; my mouse is just that good.
I like drawing in various kinds of anime/manga styles, that's why many of my artworks differ in style.